A075435 - cp's OEIS frontend

A075435 T(n,k) = right- or upward-moving paths connecting opposite corners of an n X n chessboard, visiting the diagonal at k points between start and finish.

n	a(n)
2	2
3	6
4	4
5	20
6	24
7	8
8	70
9	116
10	72
11	16
12	252
13	520
14	456
15	192
16	32
17	924
18	2248
19	2496
20	1504
21	480
22	64
23	3432
24	9520
25	12624
26	9728
27	4480
28	1152
29	128
30	12870
31	39796
32	60792
33	56400
34	33440
35	12480
36	2688
37	256
38	48620
39	164904
40	283208
41	304704
42	218720
43	105600
44	33152
45	6144

[2, 6, 4, 20, 24, 8, 70, 116, 72, 16, 252, 520, 456, 192, 32, 924, 2248, 2496, 1504, 480, 64, 3432, 9520, 12624, 9728, 4480, 1152, 128, 12870, 39796, 60792, 56400, 33440, 12480, 2688, 256, 48620, 164904, 283208, 304704, 218720, 105600, 33152, 6144]

cp's OEIS Frontend

A075435 T(n,k) = right- or upward-moving paths connecting opposite corners of an n X n chessboard, visiting the diagonal at k points between start and finish.

Table of values

List of values